The backups aren't the problem - what is the problem is Apple's "solution" to a clear bug being "don't restore from backups" (for the cellular-data draining bug).

Instead of asking you to lose all your data as a workaround to a bad bug, they should actually fix that bug properly, so that it's no longer a bug.

Likely the same with the bug described in this story - if someone ends up affected by it, they're basically pooched: they can't do any more new backups, and likely if they do restore from a previous backup where data exists that triggers this, they're just going to get into that same loop of problems.

And because it's not a "high severity" (RCE) bug, it's likely never really going to get fixed as there are "workarounds for it" (read: wipe/setup the device and omit your data) or "other mitigations implemented already (previous versions of the OS be damned!)" as noted in the story.